News RSS 16 Feb 2016 16:30:16 Source Physicists have created invisible to radar metamaterial (1 photos)U.S. and Chinese physicists have developed a metamaterial, which is a lattice of copper and plastic components and allows you to conceal objects of arbitrary shape from radar, and also to protect the antenna from interference. Physicists believe that the resulting material can be used for a wide range of tasks when required to ensure selective permeability of the medium. Read more... Chinese and American physicists have designed a metamaterial, which is a lattice of copper and plastic components and allows you to conceal objects of arbitrary shape from radar, and also to protect the antenna from interference. Physicists believe that the resulting material can be used for a wide range of tasks when required to ensure selective permeability of the medium. the Authors studied the results of recent experiments with metamaterials in which scientists have been able to get the cylinder covered with certain nanoparticles to interact with the pass-through light and waves. This condition, called "dark", Soljacic Marin and his colleagues at mit tried to recreate, reports "RIA Novosti". they used "corrugated" wire, which in its properties resembled the mentioned cylinders. It is a copper pin, wearing a lot of cubic or cylindrical structures, separated from each other by inserts of a dielectric plastic. The size of the "cubes" and the distance between them are chosen so that they will pass electromagnetic waves at certain frequencies and not to interact with them, reflecting, or absorbing. Thanks to the design of the wire has almost identical properties as the air waves at these frequencies — it flows, not reflecting and dispersing them. True to hide the object, it is necessary to determine at what frequency the radar operates. Then the cube of the metamaterial can completely hide the object. See also: the
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